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Finding the Fourth Proportional to 124,847.20, 187,270.80 and 114,738.40

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Solution

The fourth proportional to 124,847.20, 187,270.80 and 114,738.40 is: 172,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,847.20 : 187,270.80 = 114,738.40 : x
  2. Step 2: Convert to fraction form
    124,847.20/187,270.80 = 114,738.40/x
  3. Step 3: Cross multiply
    124,847.20x = 187,270.80 × 114,738.40
  4. Step 4: Simplify right side
    124,847.20x = 21,487,151,958.72
  5. Step 5: Solve for x
    x = 21,487,151,958.72/124,847.20
  6. Step 6: Final answer
    x = 172,107.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.